EP 3579445 A4 20200122 - METHOD, APPARATUS AND SYSTEM FOR SENDING SIGNALLING
Title (en)
METHOD, APPARATUS AND SYSTEM FOR SENDING SIGNALLING
Title (de)
VERFAHREN, VORRICHTUNG UND SYSTEM ZUM SENDEN VON SIGNALEN
Title (fr)
PROCÉDÉ, APPAREIL ET SYSTÈME D'ENVOI DE SIGNALISATION
Publication
Application
Priority
- CN 201710184942 A 20170324
- CN 2018080384 W 20180324
Abstract (en)
[origin: EP3579445A1] Embodiments of the present invention provide a signaling sending method, an apparatus, and a system, to improve transmission efficiency and save air interface resources. According to a first aspect, an embodiment of the present invention provides a signaling sending method. A base station determines a first precoding matrix indication PMI1 and a second precoding matrix indication PMI2, where the PMI1 and the PMI2 are used to indicate a precoding matrix. The base station sends first signaling to user equipment, where the first signaling includes the PMI1. The base station sends second signaling to the user equipment, where the second signaling includes the PMI2.
IPC 8 full level
H04B 7/0456 (2017.01); H04B 7/0404 (2017.01); H04B 7/0417 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04W 72/04 (2009.01)
CPC (source: CN EP US)
H04B 7/0404 (2013.01 - EP); H04B 7/0417 (2013.01 - EP); H04B 7/0456 (2013.01 - CN US); H04B 7/0478 (2013.01 - EP); H04B 7/063 (2013.01 - EP); H04B 7/0639 (2013.01 - EP); H04B 7/0695 (2013.01 - EP); H04L 1/0023 (2013.01 - CN); H04L 5/0091 (2013.01 - EP); H04L 5/0048 (2013.01 - EP); H04W 88/02 (2013.01 - US); H04W 88/08 (2013.01 - US)
Citation (search report)
- [XA] US 2014362943 A1 20141211 - CHEN RUNHUA [US], et al
- [XI] LG ELECTRONICS: "Discussion on codebook based transmission for UL in NR", vol. RAN WG1, no. Athens, Greece; 20170213 - 20170217, 7 February 2017 (2017-02-07), XP051221307, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_88/Docs/> [retrieved on 20170207]
- [XI] HUAWEI ET AL: "Discussion on codebook based UL MIMO transmission", vol. RAN WG1, no. Athens, Greece; 20170213 - 20170217, 12 February 2017 (2017-02-12), XP051210468, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/> [retrieved on 20170212]
- See references of WO 2018171780A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3579445 A1 20191211; EP 3579445 A4 20200122; CN 108631838 A 20181009; US 2020021343 A1 20200116; WO 2018171780 A1 20180927
DOCDB simple family (application)
EP 18771700 A 20180324; CN 201710184942 A 20170324; CN 2018080384 W 20180324; US 201916579621 A 20190923